CN103498451A - Collision type combined underflow energy dissipater structure - Google Patents
Collision type combined underflow energy dissipater structure Download PDFInfo
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Abstract
The invention relates to a collision type combined underflow energy dissipater structure. The collision type combined underflow energy dissipater structure comprises a primary flow discharge groove, a secondary flow discharge groove, a stilling pool, a stilling pool tail sill and a downstream apron, wherein a flow discharge groove partition wall is placed in the primary flow discharge groove, the secondary flow discharge groove is formed between the primary flow discharge groove and the stilling pool, the stilling pool tail sill and the downstream apron are sequentially connected to the stilling pool, the elevation difference exists between the tail portion of the primary flow discharge groove and the stilling pool, and a flip bucket is arranged at the tail end of the secondary flow discharge groove. Compared with an existing underflow energy dissipater structure, the collision type combined underflow energy dissipater structure has the advantages that the flow discharge curve is changed, part of downward relieved main current is upward lifted, collision occurs between the part of the downward relieved main current and the main current, turbulent fluctuations in the water flow state are enhanced, the water flow is prevented from directly impacting a bottom plate of the stilling pool, the energy dissipation efficiency is improved, meanwhile, pulsation of the water flow in the stilling pool is reduced, the safe running and the service life of a flow discharge building are ensured, and the collision type combined underflow energy dissipater structure can be widely applied to relieving of flow with different flow rates and of different forms.
Description
Technical field
The present invention relates to flood-discharge energy-dissipating facility field, particularly a kind of novel impact type combination disspation through hydraudic jimp work structure that is applicable to the secondary dredging flow groove collision energy dissipating of large hydraulic engineering.
Background technology
Disspation through hydraudic jimp is to utilize hydraulic jump to carry out a kind of energy dissipating form of flowing state transition and the ability of stopping that disappears, disspation through hydraudic jimp is not limited by ground, and there is the advantages such as fluid stable, atomization impact is little, but its jet faces the end, the bottom water flow hydraulic indexes is very high, and need build protection-apron at the bottom of absorption basin, be therefore a kind of larger energy-dissipating installation that expends.
Because conventional Energy Dissipation Modes has some limitations in application process, therefore, for improving disspation through hydraudic jimp work structure energy dissipation rate, the normal scheme that its supplementary devices is set that adopts of water conservancy working person, for example patent No. CN201512774U Chinese utility model patent discloses a kind of bottom outlet flood-discharge energy-dissipating structure, in invention, at the bottom outlet port of export, is provided with the baffling pier.Flip trajectory bucket is, by flip bucket, at a high speed lower sluicing jet is imported to the zone away from dam site, forms flip trajectory bucket.Choose stream jet aloft aeration, diffusion collision mutually, eliminate portion of energy, after entering the downstream water surface, in water body, spread, and carry out energy dissipating with both sides water body generation shear action.
In conjunction with the characteristics of flip trajectory bucket, the Chinese patent of patent No. CN101538841A discloses the differential trajectory jet energy in a kind of absorption basin on disspation through hydraudic jimp work architecture basics, the triangular flip bank is set in absorption basin and completes auxiliary energy dissipating.
Although these its supplementary devices can be obtained certain effect, the determining comparatively complicated and easily produce cavitation corrosion or suffer impact damage of arrangement, in addition, the backflow that these measures cause threatens larger to dam site.
Therefore, how improving disspation through hydraudic jimp work structure energy dissipation rate, solve the contradiction between Floor water mechanical index and high water head, large discharge per unit width, make it be applied to the key point that large hydraulic engineering is current disspation through hydraudic jimp research, is also direct starting point of the present invention.
In sum, provide a kind of impact type combination disspation through hydraudic jimp work structure, become those skilled in the art's problem demanding prompt solution.
The information that is disclosed in this background of invention technology part only is intended to deepen the understanding to general background technology of the present invention, and should not be regarded as admitting or imply that in any form this information structure has been prior art known in those skilled in the art.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this invention is to provide a kind of novel impact type combination disspation through hydraudic jimp work structure that is applicable to the secondary dredging flow groove collision energy dissipating of large hydraulic engineering, to overcome the deficiency of traditional disspation through hydraudic jimp work structure.
In order to achieve the above object, the invention provides a kind of impact type combination disspation through hydraudic jimp work structure, described impact type combination disspation through hydraudic jimp work structure comprises one-level dredging flow groove, secondary dredging flow groove, absorption basin, absorption basin tail bank and downstream apron, described secondary dredging flow groove is located between described one-level dredging flow groove and described absorption basin, described absorption basin tail bank and the downstream apron described absorption basin that is linked in sequence, there are depth displacement in described one-level dredging flow groove afterbody and described absorption basin, and described secondary dredging flow groove comprises that Over Curved Spillway Surface and end choose bank.
Preferably, described combined type underflow energy dissipater comprises and lets out the groove partition wall, and the described groove partition wall of letting out is arranged in described one-level dredging flow groove, and described one-level dredging flow groove is divided into to a plurality of parts according to water (flow) direction, is convenient to form the current multiply mode of dropping.
Preferably, to choose bank be that continuous type is chosen bank to the end of described secondary dredging flow groove.
Preferably, to choose bank be that differential-type is chosen bank to the end of described secondary dredging flow groove.
Preferably, the end smooth connection of the Over Curved Spillway Surface of described secondary dredging flow groove and described one-level dredging flow groove.
Preferably, the surface curve of described Over Curved Spillway Surface is parabola
wherein, the origin of coordinates is got the end of one-level dredging flow groove, and it is x axle forward that the level of take is pointed to downstream, is y axle forward straight down; G is acceleration of gravity; v
xflow velocity for x point place.
Preferably, the scope of the length L of described secondary dredging flow groove is 2P～3P, and wherein, the end that P is described one-level dredging flow groove is to the height of absorption basin base plate.
Preferably, the bottom surface of described secondary dredging flow groove overlaps with the base plate of described absorption basin, and described end is chosen the height h of bank
1for L/8～L/4, the angle of choosing that described end is chosen bank is 45 degree.
Preferably, to choose the anti-arc radius R of bank be 6h to described end
0～10h
0, h
0the depth of water for described one-level dredging flow groove end.
Preferably, described differential-type is chosen bank and is comprised Gao Kan and low bank, the height h of described high bank
1for L/8～L/4, the angle of choosing of described high bank is 45 degree, and it is 35～45 degree that described low bank is chosen angle, the described wide b of bank that chooses bank
1≈ h
k, h
kfor described tail end is chosen the vertical standoff height of the bank top depth of water of bank.
Preferably, the Over Curved Spillway Surface of described secondary dredging flow groove surface is continuous smooth surface.
Preferably, the Over Curved Spillway Surface surface of described secondary dredging flow groove is provided with dividing pier, and described Over Curved Spillway Surface is arranged to the cabinet-type curved surface.
Preferably, describedly let out the afterbody that the groove partition wall extends to described secondary dredging flow groove, the described groove partition wall of letting out is provided with slanting back, and described slanting back stretches out the end of described secondary dredging flow groove, and the length a of described slanting back is described 1.5～2 times of letting out the groove partition wall thickness.
Beneficial effect of the present invention is:
1, with respect to existing disspation through hydraudic jimp work structure, the structural change of impact type of the present invention combination disspation through hydraudic jimp work the earial drainage curve, by choosing letting out on main flow under part, and bump with main flow, aggravated the turbulent fluctuation of flow-shape, thereby increased substantially energy dissipating efficiency, can be widely used in different flow, multi-form earial drainage.
2, impact type combination disspation through hydraudic jimp work structure of the present invention, the stream effect of choosing by one-level dredging flow groove depth displacement and secondary dredging flow groove, reduce to a certain extent absorption basin and faced end hydraulic indexes, can be used as main energy dissipater uses in the outlet structure escape works of high water head, large discharge per unit width, and meet the energy dissipating requirement, be applicable to foundation condition poor, in the higher engineering of surrounding environment requirement for restriction.
3, the structural change of impact type of the present invention combination disspation through hydraudic jimp work the earial drainage curve, on choose main flow and there is the effect that increases water cushion, avoid high-velocity flow directly to impact the absorption basin base plate, reduced the flow fluctuation in absorption basin, ensured safe operation and the application life of earial drainage building.
4, cabinet-type secondary dredging flow groove makes the current share split enter pond, and the dividing pier afterbody is provided with streamlined pier tail, can avoid the vertical shaft whirlpool that dispersion of flow produces to destroy.
The accompanying drawing explanation
By Figure of description and the specific embodiment that is used from subsequently explanation the present invention some principle with Figure of description one, the further feature that the present invention has and advantage will become clear or more specifically be illustrated.
The floor map that Fig. 1 is the embodiment of the present invention 1, the secondary dredging flow groove adopts continuous type, and it is continuous type that afterbody is chosen bank;
The elevational schematic view that Fig. 2 is the embodiment of the present invention 1;
The floor map that Fig. 3 is the embodiment of the present invention 2, the secondary dredging flow groove adopts continuous type, and it is differential-type that afterbody is chosen bank;
The elevational schematic view that Fig. 4 is the embodiment of the present invention 2;
The floor map that Fig. 5 is the embodiment of the present invention 3, the secondary dredging flow groove adopts cabinet-type, and it is continuous type that afterbody is chosen bank;
The elevational schematic view that Fig. 6 is the embodiment of the present invention 3;
The floor map that Fig. 7 is the embodiment of the present invention 4, the secondary dredging flow groove adopts cabinet-type, and it is differential-type that afterbody is chosen bank;
The elevational schematic view that Fig. 8 is the embodiment of the present invention 4;
The continuous type afterbody that Fig. 9 is secondary dredging flow groove of the present invention is chosen the elevational schematic view of bank;
The differential-type afterbody that Figure 10 is secondary dredging flow groove of the present invention is chosen the elevational schematic view of bank;
The differential-type afterbody that Figure 11 is secondary dredging flow groove of the present invention is chosen the floor map of bank.
The critical element symbol description:
1 one-level dredging flow groove 2 is let out the groove partition wall
3 secondary dredging flow groove 4 absorption basins
5 absorption basin tail bank 6 downstream aprons
7 pier tail 21,22 dividing piers
The length of L secondary dredging flow groove
The length of A pier tail
B pier tail or let out the thickness of groove partition wall
The end of P one-level dredging flow groove is to the height of absorption basin base plate
H
1afterbody is chosen the height of bank
B
1the width of the high bank of afterbody
L
0afterbody is chosen the length of bank
H
0the depth of water of one-level dredging flow groove end
H
kthe vertical standoff height of the bank top depth of water
The R afterbody is chosen the radius of the anti-segmental arc of bank
The α continuous flip bucket choose angle
α
1the high bank of slotted flip bucket is chosen angle
α
2the high bank of slotted flip bucket is chosen angle.
Should understand, Figure of description might not show concrete structure of the present invention pari passu, and also can take for the n-lustrative feature that some principle of the present invention is described the technique of painting of slightly simplifying in Figure of description.Specific design feature of the present invention disclosed herein for example comprises that concrete size, direction, position and profile will be partly will be applied and the environment of use is determined by concrete.
In several accompanying drawings of Figure of description, identical Reference numeral means the identical or part that is equal to of the present invention.
The specific embodiment
A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, those skilled in the art can be in the situation that do similar popularization without prejudice to intension of the present invention, so the present invention is not subject to the restriction of following public specific embodiment.
Refer to shown in Fig. 1 to 10, the invention provides a kind of impact type combination disspation through hydraudic jimp work structure.
Embodiment 1 and embodiment 2 represent that respectively secondary dredging flow groove structure adopts continuous type and two kinds of multi-form situations of cabinet-type, and every kind of situation lower tail is chosen bank and is divided into again continuous type and two kinds of forms of differential-type.
It is continuous level and smooth Over Curved Spillway Surface that the continuous type afterbody is chosen the bank afterbody of choosing that bank refers to the secondary dredging flow groove.
The differential-type afterbody is chosen the Over Curved Spillway Surface that the bank afterbody is separated with identical high low head between perpendicular to water (flow) direction of choosing that bank refers to the secondary dredging flow groove.Embodiment is applicable to upstream one-level dredging flow groove and goes out two kinds of forms of stream for going out continuously stream and multiply.When not comprising while letting out the groove partition wall, upstream one-level dredging flow groove is let out mode under continuously, and the jet of generation is solid jet; When comprising that while letting out the groove partition wall, upstream one-level dredging flow groove is to let out mode under multiply, the jet of generation is multiple jets.
Described impact type combination disspation through hydraudic jimp work structure comprises one-level dredging flow groove 1, secondary dredging flow groove 3, absorption basin 4, absorption basin tail bank 5 and downstream apron 6.
Secondary dredging flow groove 3, described secondary dredging flow groove 3 is located between described one-level dredging flow groove 1 and described absorption basin 4.
Absorption basin tail bank 5 and downstream apron 6, described absorption basin tail bank 5 and the downstream apron 6 described absorption basin 4 that is linked in sequence, there are depth displacement in described one-level dredging flow groove 1 afterbody and described absorption basin 4.
Described secondary dredging flow groove 3 comprises that Over Curved Spillway Surface and end choose bank.
Below, by reference to the accompanying drawings specific embodiments of the invention are described.
Embodiment 1
As shown in Figures 1 and 2, be floor map and the elevational schematic view of the first embodiment of the present invention.
Impact type combination disspation through hydraudic jimp work structure in the present embodiment, structure forms and comprises one-level dredging flow groove 1, earial drainage partition wall 2, secondary dredging flow groove 3, absorption basin 4, absorption basin tail bank 5 and downstream apron 6.
Wherein, the terminal horizontal of one-level dredging flow groove 1, and have certain depth displacement with the base plate of absorption basin 4; The Over Curved Spillway Surface of secondary dredging flow groove 3 is continuous type, and end is provided with and chooses bank, and the Over Curved Spillway Surface of secondary dredging flow groove 3 is continuous smooth surfaces, in lower sluicing stream continuum, enters pond; The end of the Over Curved Spillway Surface of secondary dredging flow groove 3 and one-level dredging flow groove 1 smoothly joins, and the length L of secondary dredging flow groove 3 is got 2P～3P, and wherein P is the height of one-level dredging flow groove 1 end to the absorption basin base plate.The bank of choosing of secondary dredging flow groove 3 is set to continuous type, and its floor map as shown in Figure 1.
As shown in Figure 2, secondary dredging flow groove 3 spillwag chute curvilinear equations are the elevational schematic view of impact type combination disspation through hydraudic jimp work structure:
in formula, the origin of coordinates is got the end of one-level dredging flow groove 1, and it is x axle forward that the level of take is pointed to downstream, is y axle forward straight down; G is acceleration of gravity; v
xflow velocity for x point place.
Continuous type is chosen the bank elevational schematic view as shown in Figure 9, and the afterbody of secondary dredging flow groove (secondary dredging flow groove) 3 is chosen the height h of bank
1for L/8～L/4; Choose bank anti-arc radius R and get 6h
0～10h
0, h
0the depth of water for one-level dredging flow groove end; The angle α that chooses that chooses bank gets 45 °.Embodiment 2
As shown in Figures 3 and 4, be floor map and the elevational schematic view of the second embodiment of the present invention.
Impact type in the present embodiment combination disspation through hydraudic jimp work structure, structure forms and comprises one-level dredging flow groove 1, lets out groove partition wall 2, secondary dredging flow groove 3, absorption basin 4, absorption basin tail bank 5 and downstream apron 6.
Wherein, one-level dredging flow groove 1 terminal horizontal, and have certain depth displacement with absorption basin 4 base plates; The Over Curved Spillway Surface of secondary dredging flow groove 3 is continuous type, and end is provided with and chooses bank, and secondary dredging flow groove 3 Over Curved Spillway Surfaces are continuous smooth surfaces, in lower sluicing stream continuum, enter pond; The end of the Over Curved Spillway Surface of secondary dredging flow groove 3 and one-level dredging flow groove 1 smoothly joins, and the length L of secondary dredging flow groove is got 2P～3P, and P is the height of one-level dredging flow groove 1 end to absorption basin 4 base plates.The bank of choosing of secondary dredging flow groove 3 is set to differential-type, and its floor map as shown in Figure 3.
As shown in Figure 4, the curvilinear equation of secondary dredging flow groove 3 spillwag chute curved surfaces is the elevational schematic view of impact type combination disspation through hydraudic jimp work structure:
in formula, the origin of coordinates is got the end of one-level dredging flow groove 1, and it is x axle forward that the level of take is pointed to downstream, is y axle forward straight down; G is acceleration of gravity; v
xflow velocity for x point place.
Differential-type chooses the bank facade and floor map is distinguished as shown in Figure 10 and Figure 11, and secondary dredging flow groove (secondary dredging flow groove) 3 afterbodys are chosen the height h of bank
1for L/8～L/4; Choose bank anti-arc radius R and get 6h
0～10h
0, h
0the depth of water for one-level dredging flow groove end; Choose Kan Gaokan and choose angle α
1get 45 °, low bank is chosen angle α
2get 35 °～40 °; The wide b of the bank of differential Kan Gaokan
1≈ h
k, h
kvertical standoff height for the bank top depth of water.
As shown in Figures 5 and 6, be floor map and the elevational schematic view of the third embodiment of the present invention.
Novel combination disspation through hydraudic jimp work structure in the present embodiment, structure forms and to comprise one-level dredging flow groove 1, lets out groove partition wall 2, secondary dredging flow groove 3, absorption basin 4, absorption basin tail bank 5 and downstream apron 6.
Wherein, one-level dredging flow groove 1 terminal horizontal, and have certain depth displacement with absorption basin 4 base plates; Secondary dredging flow groove 3 is cabinet-type, and lower sluicing stream is divided into multiple jets and disperses interval to enter pond; The end of the Over Curved Spillway Surface of secondary dredging flow groove 3 and one-level dredging flow groove 1 smoothly joins, and length L is got 2P～3P, and P is the height of one-level dredging flow groove 1 end to absorption basin 4 base plates.In the middle of secondary dredging flow groove 3, a plurality of dividing piers 21 are set, dividing pier 21 is provided with pier nose and pier tail, and pier nose is semicircle, and diameter is dividing pier 21 thickness, and the pier tail is set to streamlined, and length a is 1.5～2 times of dividing pier 21 thickness.Go out the stream mode if the one-level dredging flow groove is multiply, the groove partition wall 2 of letting out of dividing pier 21 and one-level being let out to groove 1 overlaps, and pier nose no longer is set.Preferred this kind of mode.The tail bank of secondary dredging flow groove 3 is set to continuous type, and its floor map as shown in Figure 5.(dividing pier 21 has marked at accompanying drawing)
As shown in Figure 6, the spillwag chute curvilinear equation of secondary dredging flow groove 3 leading portions is the elevational schematic view of impact type combination disspation through hydraudic jimp work structure:
in formula, the origin of coordinates is got the end of one-level dredging flow groove 1, and it is x axle forward that the level of take is pointed to downstream, is y axle forward straight down; G is acceleration of gravity; v
xflow velocity for x point place.
Continuous type is chosen the bank elevational schematic view as shown in Figure 9, and secondary dredging flow groove (secondary dredging flow groove) afterbody is chosen the height h of bank
1for L/8～L/4; Described afterbody is chosen bank anti-arc radius R and is got 6h
0～10h
0, h
0the depth of water for one-level dredging flow groove end; The angle α that chooses that chooses bank gets 45 °.Embodiment 4
As shown in Figures 5 and 6, be floor map and the elevational schematic view of the third embodiment of the present invention.
Impact type in the present embodiment combination disspation through hydraudic jimp work structure, structure forms and comprises one-level dredging flow groove 1, lets out groove partition wall 2, secondary dredging flow groove 3, absorption basin 4, absorption basin tail bank 5 and downstream apron 6.
Wherein, the terminal horizontal of one-level dredging flow groove 1, and have certain depth displacement with the base plate of absorption basin 4; Secondary dredging flow groove 3 is cabinet-type, and lower sluicing stream is divided into multiple jets and disperses interval to enter pond; The end of secondary dredging flow groove 3 spillwag chutes and one-level dredging flow groove 1 smoothly joins, and the length L of secondary dredging flow groove 3 is got 2P～3P, and P is the height of one-level dredging flow groove 1 end to absorption basin 4 base plates.In the middle of secondary dredging flow groove 3, a plurality of dividing piers 22 are set, dividing pier 22 is provided with pier nose and pier tail, and pier nose is semicircle, and diameter is dividing pier 22 thickness, and the pier tail is set to streamlined, and described streamlined pier tail length a is 1.5～2 times of dividing pier 22 thickness.If one-level dredging flow groove 1 goes out the stream mode for multiply, dividing pier 22 is overlapped with the groove partition wall 2 of letting out of one-level dredging flow groove 1, pier nose no longer is set.Preferred this kind of mode.The stream tail bank of choosing of secondary dredging flow groove 3 is set to differential-type, and its floor map as shown in Figure 7.
As shown in Figure 8, the spillwag chute curvilinear equation of secondary dredging flow groove (secondary dredging flow groove) 3 leading portions is the elevational schematic view of impact type combination disspation through hydraudic jimp work structure:
in formula, the origin of coordinates is got the end of one-level dredging flow groove 1, and it is x axle forward that the level of take is pointed to downstream, is y axle forward straight down; G is acceleration of gravity; v
xflow velocity for x point place.
Differential-type is chosen the bank elevational schematic view as shown in figure 10, and secondary dredging flow groove (secondary dredging flow groove) 3 afterbodys are chosen the height h of bank
1for L/8～L/4; Choose bank anti-arc radius R and get 6h
0～10h
0, h
0(be the depth of water of one-level dredging flow groove end; Choose Kan Gaokan and choose angle α
1get 45 °, low bank is chosen angle α
2get 35 °～40 °; The wide b of the bank of differential bank
1≈ h
k, h
kvertical standoff height for the bank top depth of water.
Above-described embodiment is for illustrative principle of the present invention and effect thereof, but the present invention is not limited to above-mentioned embodiment.Those skilled in the art all can, under spirit of the present invention and category, in the claim protection domain, modify to above-described embodiment.Therefore protection scope of the present invention, should cover as claims of the present invention.
Claims (13)
1. an impact type combines disspation through hydraudic jimp work structure, described impact type combination disspation through hydraudic jimp work structure comprises one-level dredging flow groove (1), secondary dredging flow groove (3), absorption basin (4), absorption basin tail bank (5) and downstream apron (6), described secondary dredging flow groove (3) is located between described one-level dredging flow groove (1) and described absorption basin (4), described absorption basin tail bank (5) and downstream apron (6) the described absorption basin (4) that is linked in sequence, it is characterized in that, there are depth displacement in described one-level dredging flow groove (1) afterbody and described absorption basin (4), described secondary dredging flow groove (3) comprises that Over Curved Spillway Surface and end choose bank.
2. impact type according to claim 1 combines disspation through hydraudic jimp work structure, it is characterized in that, described combined type underflow energy dissipater comprises and lets out groove partition wall (2), the described groove partition wall (2) of letting out is arranged in described one-level dredging flow groove (1), and described one-level dredging flow groove (1) is divided into to a plurality of parts according to water (flow) direction, be convenient to form under the current multiply and let out mode.
3. impact type combination disspation through hydraudic jimp work structure according to claim 1, is characterized in that, it is that continuous type is chosen bank that the end of described secondary dredging flow groove (3) is chosen bank.
4. impact type combination disspation through hydraudic jimp work structure according to claim 1, is characterized in that, it is that differential-type is chosen bank that the end of described secondary dredging flow groove (3) is chosen bank.
5. impact type combination disspation through hydraudic jimp work structure according to claim 1, is characterized in that the end smooth connection of the Over Curved Spillway Surface of described secondary dredging flow groove (3) and described one-level dredging flow groove (1).
6. impact type combination disspation through hydraudic jimp work structure according to claim 5, is characterized in that, the surface curve of described Over Curved Spillway Surface is parabola
wherein, the origin of coordinates is got the end of one-level dredging flow groove (1), and it is x axle forward that the level of take is pointed to downstream, is y axle forward straight down; G is acceleration of gravity; v
xflow velocity for x point place.
7. impact type according to claim 6 combines disspation through hydraudic jimp work structure, it is characterized in that, the scope of the length (L) of described secondary dredging flow groove (3) is 2P～3P, and wherein, the end that P is described one-level dredging flow groove (1) is to the height of absorption basin (4) base plate.
8. impact type combination disspation through hydraudic jimp work structure according to claim 7, is characterized in that, the bottom surface of described secondary dredging flow groove (3) overlaps with the base plate of described absorption basin (4), and described end is chosen the height (h of bank
1) be L/8～L/4, the angle of choosing that described end is chosen bank is 45 degree.
9. impact type combination disspation through hydraudic jimp work structure according to claim 8, is characterized in that, described end is chosen the ogee that is shaped as of bank, and the radius R of described ogee is 6h
0～10h
0, h
0the depth of water for described one-level dredging flow groove (1) end.
10. impact type combination disspation through hydraudic jimp work structure according to claim 4, is characterized in that, described differential-type is chosen bank and comprised Gao Kan and low bank, the height h of described high bank
1for L/8～L/4, the angle of choosing of described high bank is 45 degree, and it is 35～45 degree that described low bank is chosen angle, the described wide b of bank that chooses bank
1≈ h
k, h
kfor described tail end is chosen the vertical standoff height of the bank top depth of water of bank.
11. according to the described impact type combination of claim 1～10 any one disspation through hydraudic jimp work structure, it is characterized in that, the Over Curved Spillway Surface surface of described secondary dredging flow groove (3) is continuous smooth surface.
12. according to the described impact type combination of claim 1～10 any one disspation through hydraudic jimp work structure, it is characterized in that, the Over Curved Spillway Surface surface of described secondary dredging flow groove (3) is provided with dividing pier, and described Over Curved Spillway Surface is arranged to the cabinet-type curved surface.
13. impact type combination disspation through hydraudic jimp work structure according to claim 2, it is characterized in that, describedly let out the afterbody that groove partition wall (2) extends to described secondary dredging flow groove (3), the described groove partition wall (2) of letting out is provided with slanting back, described slanting back stretches out the end of described secondary dredging flow groove (3), and the length a of described slanting back is described 1.5～2 times of letting out groove partition wall (2) thickness.
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| CN104404926A (en) * | 2014-10-08 | 2015-03-11 | 四川大学 | Overflow dam with dam face cantilever sills for current diversion and energy dissipation |
| CN106120675A (en) * | 2016-08-08 | 2016-11-16 | 浙江水利水电学院 | A kind of efficiently energy dissipating flood discharge overfull dam surface structure |
| CN107119644A (en) * | 2017-05-19 | 2017-09-01 | 四川大学 | One lock porous type open channel is pressed into a mouthful whole-section aeration hydraulic facility |
| CN108005038A (en) * | 2017-11-30 | 2018-05-08 | 中国电建集团成都勘测设计研究院有限公司 | A kind of accumulated slag charge for remittance structure of underflow stilling basin |
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| CN104404926A (en) * | 2014-10-08 | 2015-03-11 | 四川大学 | Overflow dam with dam face cantilever sills for current diversion and energy dissipation |
| CN104404926B (en) * | 2014-10-08 | 2016-07-27 | 四川大学 | Dam facing chooses the overfall dam of bank shunting energy dissipating |
| CN106120675A (en) * | 2016-08-08 | 2016-11-16 | 浙江水利水电学院 | A kind of efficiently energy dissipating flood discharge overfull dam surface structure |
| CN106120675B (en) * | 2016-08-08 | 2018-07-06 | 浙江水利水电学院 | A kind of efficient energy dissipating flood discharge overfull dam surface structure |
| CN107119644A (en) * | 2017-05-19 | 2017-09-01 | 四川大学 | One lock porous type open channel is pressed into a mouthful whole-section aeration hydraulic facility |
| CN108005038A (en) * | 2017-11-30 | 2018-05-08 | 中国电建集团成都勘测设计研究院有限公司 | A kind of accumulated slag charge for remittance structure of underflow stilling basin |
| CN108316256A (en) * | 2018-03-27 | 2018-07-24 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of folded plate type end sill stilling pond |
| CN109083107A (en) * | 2018-07-17 | 2018-12-25 | 四川大学 | It is a kind of to choose the air entraining facilities that stream forms aerated cavity using water flow centripetal force inertia |
| CN109083107B (en) * | 2018-07-17 | 2020-09-08 | 四川大学 | Aeration facility for forming aeration cavity by utilizing water flow centripetal force inertia turbulence |
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